Towards 5g network slicing motivations and challenges. A recent insight article by jason elliot, 5g market development, nokia, tilted dynamic network slicing optimizes 5g architecture, provides an answer. Software architecture design is an abstraction, hiding. Its defined as the ability to orchestrate specific capabilities across different points of. Network slicing has also attracted a lot of research interests from the academia. Each network slice is an isolated endtoend network tailored to fulfil diverse requirements requested by a particular application for this reason, this technology assumes a central role to support 5g mobile networks that are. Dynamic program slicing department of computer science. By taeho kim, yeongtae song, lawrence chung and dung t. In python, indexing syntax can be used as a substitute for the slice object. The computation of forward dynamic software architecture slice using the dsas method is depicted in figure 2. We offer the planning, design, implementation, and operations services required to build and grow todays business information systems technology environments. Additionally, with new 5g software automation features from cienas blue planet, including network slicing and dynamic planning, operators can offer, measure and report on different slas based on specific customer needs and further simplify network buildouts to support 5g small cell deployments. Network slicing paving the way towards 5g ericsson. As the complexity of software systems increases, so does the need for a good mechanism of abstraction.
Software architecture analysis using dynamic slicing 1999. Dynamic endtoend network slicing unlocks 5g possibilities. Index termssoftware architecture, uml, architectural metamodel, dynamic. In order to alleviate such difficulties, we introduce the notion of dynamic software architecture slicing dsas, a methodology for using the notion, and an algorithm to generate dynamic software. Network slicing allows multiple virtual networks to be created on top of a common shared physical infrastructure. Dynamic software architecture slicing dsas is a technique to decompose software architecture with respect to the given slicing criterion. See more features and benefits in this infographic. For communication service providers, who are set out to build tailored services for both public and industries needs, we offer endtoend network slicing through ericsson. Slicing techniques have been seeing a rapid development since the original definition by mark weiser. These pages attempt to organize and coalesce the ongoing work in the field of dynamic software architectures.
It can also be used for the purpose of debugging in order to find the bugs more easily and quickly. Some architectural considerations about the data plane, control plane, management and orchestration of network slicing are described to give a general view of network. The network architecture must shift from the current network of entities to a network of capabilities architecture. Static and dynamic architecture systems have a static and a dynamic architecture. Here, we formally define some notions of dynamic slicing of aspectoriented programs. Network slicing has become a common phrase in the 5g discussion, but what is dynamic network slicing. Kim introduced an architectural slicing technique called dynamic software architecture slicing dsas in 5. Dynamic software architectures represent one encouraging approach to mitigating these difficulties.
Korel and ferguson 1992 have proposed an extension of their dynamic slicing algorithm korel and laski, 1988 to distributed programs with ada type rendezvous communication. Dynamic slicing of aspectoriented programs is similar to that of objectoriented programs. Network slicing automation enables monetization of new business opportunities. Dynamic network slicing is the secret sauce behind 5g. Dynamic software architecture slicing semantic scholar. Given a system and a slicing criterion, architectural slicing produces an architectural prototype that contains the elements in the architecture that are dependent on the. This is an easy and convenient way to slice a string both syntax wise and execution wise. Network slicing context and motivation a number of definitions for network slicing as partitions of network resources were used in. Dynamic software designs dsd is a growing information technology company in pensacola, florida. In this paper, we concern the problem of dynamic slicing of objectoriented programs which, to our knowledge, has not been addressed in the literatures. Interprocedural dynamic slicing and its application to. Fig 1 dynamic software architecture slicing methodology proposed by.
The systems components and connections can be created and destroyed during runtime according to the rules from designtime. The aim of these investments is to ensure that all services and applications will operate flawlessly in the 5g architecture and retain customers by delivering the highest quality experiences. We mark and unmark the edges of the dpdg appropriately as and when dependencies arise and cease during runtime. The authors propose a technique for constructing dynamic slices of unified modelling language uml models using the state information.
Pdf dynamic software architecture slicing taeho kim. Dynamic software architectures are those that describe how components and connectors can be created, interconnected, andor removed during system execution. The authors have named this intermediate representation model dependency graph mdg. Network models must shift from the current network for connectivity to. Dec 29, 2017 network slicing has become a common phrase in the 5g discussion, but what is dynamic network slicing. Florida software engineering research center serc, and by the national science. For those who dont know, a 3d printing slicer prepares the selected model for your 3d printer, generating gcode, which is a widely used numerical control nc programming language. This paper also describes a methodology for using the notion, and an algorithm to generate dynamic software architecture slices. Dynamic spectrum access an overview sciencedirect topics.
Slicing or program slicing is a technique used in software testing which takes. Huynh, software architecture analysis using dynamic slicing, in proceedings of aomiaom 17th international conference on computer science, august 1999. Dynamic endtoend network slicing for 5g nokia white paper addressing 5g requirements for diverse services, use cases, and business models. With all of this in mind, the question that is arising for 5g designers is how to meet the expected demand, i. This document defines the overall architecture of network slicing. Pdf a dynamic slicing technique for uml architectural models. In order to alleviate such difficulties, we introduce the notion of dynamic software architecture slicing dsas, a methodology for using the notion, and an algorithm to generate dynamic software architecture slice.
For a software architecture specified using uml, we first transform the systems architectural model into an intermediate representation which we have named model dependency graphmdg. Google scholar, dynamic software architecture slicing, in compsac 99. For more information about slicing in 5g, you can watch our relevant webinar. The nokia dynamic network slicing concept enables dynamic endtoend slicing of 5g networks. Software architecture analysis using dynamic slicing core. Each slice provides network capabilities that match the needs of a group of services or applications with similar requirements. This paper also describes a methodology for using the notion, and a forward dynamic software architecture slicing algorithm to generate dynamic software architecture slices. Slicing uml architectural models acm sigsoft software. In this paper, we propose a novel technique for harvesting architectural prototypes from existing systems, architectural slicing, based on dynamic program slicing.
For a software architecture specified using uml, we first transform the systems architectural model into an intermediate repres. Given a software architecture specified using uml, the authors first construct an intermediate representation. The static architecture is represented by a collection of components that are structured in a component selection from modelbased engineering with aadl. The cra is expressed in radio extensible markup language rxml. Dynamic slicing of objectoriented programs springerlink. In computer science, dynamic software updating dsu is a field of research pertaining to upgrading programs while they are running. Slicing or program slicing is a technique used in software testing which takes a slice or a group of program statements in the program for testing particular test conditions or cases and that may affect a value at a particular point of interest. Ciena unveils 5g innovations to fuel the next wave of mobile. Dynamic network slicing for scalable fog computing systems. Software architectural design is becoming increasingly important in software engineering, as being manifested through various recent developments in the field. Citeseerx document details isaac councill, lee giles, pradeep teregowda.
Distributed dynamic slicing of java programs sciencedirect. A network slicing sdn software defined network is an essential ingredient of the architecture used to manage traffic flows through the application program interfaces apis of a central control plane. We demonstrate the feasibility and the expected benefits of. To solve this problem, we present the dynamic objectoriented dependence graph dodg which is an arcclassified digraph to explicitly represent various dynamic dependence between statement. In this paper, we introduce a new dynamic network slicing architecture for largescale energyharvesting fog computing networks. We propose a novel dynamic slicing technique for distributed java programs. Dynamic network slicing for scalable fog computing. There is a large number of slicing software out there, many of which are free. A dynamic slicing technique for uml architectural models ieee. At dynamic software, inc, we know your software is the backbone of your business, which is why we offer innovative, missioncritical solutions that offer you better availability, improve efficiency, and offer flexible, scalable systems that meet the specific needs of your business.
It enables operators to partition a common network infrastructure into many logical, endtoend virtual network instances, or slices. Abstraction is such a mechanism as the key concept underpinning software architecture. However, due to the presence of pointcuts and advices, the tracing of dependences becomes much more complex. A dynamic software architecture slice represents the runtime behavior of those parts of the software architecture that are selected according to a particular slicing criterion such as a set of. Network slicing capitalizes on the capabilities of software. This architecture embodies a new network entity, the regional sdnbased orchestrator, that coordinates the workload processed by multiple closely located fog nodes and creates slices of energy and computational. Issn online 23942320 ijercse vol 5, issue 3, march 2018. Jul 26, 2016 with all of this in mind, the question that is arising for 5g designers is how to meet the expected demand, i. They can thereby host and execute services in one or more distinct network slices. Integrated statebased dynamic slicing technique for uml. We first construct the intermediate representation of a distributed java program in the form of a set of distributed program dependence graphs dpdg. A dynamic software architecture slice represents the runtime behavior of those parts of the software architecture that are selected according to a particular slicing criterion such as a set of resources and events. In this paper, we concern the problem of dynamic slicing of objectoriented. Dynamic software architecture slicing methodology download.
Aug 30, 2016 dynamic network slicing is the secret sauce behind 5g. Other applications of slicing include software maintenance, optimization, program analysis, and information flow control. Software architecture of a software system with rules of evolution of its structurearchitecture during runtime. Based on the general architecture, basic concepts of network slicing and examples of network slicing instances are introduced for clarification purposes. Network slicing is a form of virtual network architecture using the same principles behind software defined networking sdn and network functions virtualisation nfv in fixed networks. We first extract all relevant information from a uml model specifying a software architecture into an intermediate representation, which we call a.
Dynamic network slicing with wavefabric nokia blog. The architecture of software defined networking sdn is defined in onf tr502. New european 5g group will focus on network slicing. Static slicing of uml architectural models jaiprakash t. Architecture slicing technique operates by removing unrelated components and connectors, and ensures that the behavior of a sliced system remains unaltered. The purpose of this document is to describe how key functional aspects of the sdn architecture apply for the enablement of the businessdriven concept of. Dynamic program slicing hiralal agra w al departmen t of computer sciences purdue univ ersit y w est lafa y ette, in 479072004 joseph r. Python slicing is about obtaining a substring from the given string by slicing it respectively from start to end. A dynamic software architecture slice represents the runtime behavior of those parts of the software architecture that are selected according to the particular slicing criterion of interest to the software architect such as a set of. It supports the very diverse and extreme requirements for latency, throughput, and availability operators will have to meet to deliver 5g services to a wide variety of users, machines, industries, and other organizations. We demonstrate the feasibility and the expected benefits of the approach by using an illustrative example. We describe the methodology and algorithm in this section. Part of ericssons 5g platform, dynamic orchestration supports specific business use cases, enabling service providers to launch services which leverage both physical and virtual network functions. Network slicing architecture draftgengnetslices architecture 01.
The control plane configures resources to deliver tailored services to the client through the application layer. With dynamic network slicing, operators could create a fully programmable network architecture which suits the requirements of various use cases, subscriber types and apps. Software testing basics software engineering architectural design. Mdg combines information extracted from various sequence. Kim introduced an architectural slicing technique called dynamic software ar. We propose a technique for static and dynamic slicing of uml models.